The spelling of "supporting cells" can be broken down phonetically using the International Phonetic Alphabet (IPA) as [səˈpɔːtɪŋ sɛlz]. The first syllable "sə" is pronounced with a schwa sound, while the "p" and "t" sounds are combined with a glottal stop. The second syllable "pɔːt" is pronounced with a long "o" sound, followed by a "t" sound. The final syllable "ɪŋ sɛlz" includes the "ng" sound and a short "e" sound. Overall, the spelling of "supporting cells" corresponds to its phonetic pronunciation when using IPA.
Supporting cells, also known as glial cells or neuroglia, refer to a group of non-neuronal cells that play a crucial role in supporting and protecting the neurons within the nervous system. These cells are found in the central nervous system (CNS) and the peripheral nervous system (PNS).
The main function of supporting cells is to provide structural support and maintain homeostasis within the nervous system. They help in insulating and protecting the neurons by forming the myelin sheath, a fatty layer that wraps around the axons of neurons, assisting in the conduction of electrical impulses.
Supporting cells also regulate the extracellular environment by controlling the levels of ions, neurotransmitters, and metabolites. They assist in the uptake and recycling of neurotransmitters released by neurons, ensuring proper signaling and preventing excessive neurotransmitter accumulation.
Additionally, supporting cells aid in the repair and regeneration of damaged neural tissue. They contribute to immune responses in the nervous system, promoting tissue repair and clearance of cellular debris. These cells also play a role in guiding the growth of developing neurons, helping establish neural connections and synapses.
There are several types of supporting cells in the nervous system, including oligodendrocytes, Schwann cells, astrocytes, microglia, and ependymal cells, each with their specific functions and characteristics. Collectively, these supporting cells collaborate with neurons to maintain the functioning and integrity of the nervous system.
See Hensen, and cut of Corti's organ.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "supporting cells" does not have a specific etymology as it is a straightforward compound noun combining the words "support" and "cells".
The word "support" comes from the Old French verb "supporter", which in turn comes from the Latin word "supportare", meaning "to convey, carry, or sustain". The Latin word is a combination of "sub" (under) and "portare" (to carry).
The word "cells" comes from the Latin word "cellula", meaning "small room" or "small cell". It was originally used to refer to monastery or convent cells. Over time, it acquired the meaning of the smallest unit of a living organism, such as in biology.
Therefore, "supporting cells" refers to cells that provide structural support or sustenance to other cells or tissues in biology.